Here is the full list of all 23 Super Splatters achievements.
Achieve 8 different stunts in a single level
Generate 9 stunts with a single splatter
Do 200 Air-Strikes
Throw a splatter off the stage
Throw fireworks pods off the stage
Reach a total of 500 stunts
Finish all the "Easy" events in the game
Generate 5 different stunts with a single splatter
Explode 1,000 fireworks pods
Reach a total of 5,000 stunts
Explode 10,000 fireworks pods
Get 1,000,000,000 views overall
Get 20 Mammoth explosions overall
Finish 10 "Combo Rush" events
Finish 10 Hard "Master Shot" events
Achieve at least 1 star in all events
Achieve 3-star rating for 10 "Master Shots" events
Get any 30 trophies
Chain a single combo through an entire hard "Combo Rush" event
Do more stunts than the 3-star rating of a hard "Master Shots" event
Do 5 slides with a single splatter
Kill the Sensei!
Have your splatter change color while in mid air